<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="jquery.3.4.1.js"></script>

</head>
<body>
<form action="">
    <input type="text">
    <input type="password">
    <input type="submit">
</form>
</body>
<script>
    $(':submit').click(
        function () {
            return false
        }
    )
</script>
</html>